Hi,
I have been trying to solve some mechanics problems and I can come up with the right equation, but I don't know how to solve it...
For example:
490.5cos(theta) - 3600cos(theta)sin(theta) + 1800sin(theta) = 0
i need to solve for theta here
its one equation and one unknown...
Here is the answer:
(a) d/dx(0.5v2) = ( x + 3 )
=> v2/2 = x2/2 + 3x + C
=> v2 = x2 + 6x + C
when t=0, x=0 and v=3
Therefore, c = 9
v2 = x2 + 6x + 9
=> v2 = (x+3)2
=> v = (x+3)
(b) v = x+3
a = x+3
a =...